Figure out the absolute least you need to do to implement the idea, do just that, and then polish the hell out of the experience.
Not only does John Gruber nail it when it comes to the essence of what being ‘iPhone like’ is about, he echoes the essence of what good piece of software is about. At it’s furthest abstraction, in my opinion, the above is really a mantra for reaching the pinnacle of one’s own life.
[Via Daring Fireball]